250220819 has 2 divisors, whose sum is σ = 250220820. Its totient is φ = 250220818.

The previous prime is 250220801. The next prime is 250220821. The reversal of 250220819 is 918022052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 250220819 - 2¹² = 250216723 is a prime.

It is a super-2 number, since 2×250220819² = 125220916522061522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 250220821, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 250220791 and 250220800.

It is not a weakly prime, because it can be changed into another prime (250220849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125110409 + 125110410.

It is an arithmetic number, because the mean of its divisors is an integer number (125110410).

Almost surely, 2^250220819 is an apocalyptic number.

250220819 is a deficient number, since it is larger than the sum of its proper divisors (1).

250220819 is an equidigital number, since it uses as much as digits as its factorization.

250220819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 250220819 is about 15818.3696694697. The cubic root of 250220819 is about 630.1459467028.

The spelling of 250220819 in words is "two hundred fifty million, two hundred twenty thousand, eight hundred nineteen".